value unc_up unc_lo author ref method 6.32 0.165 0.165 Masiero 2011ApJ...741...68M NEATM 6.38 1.986 1.986 Masiero 2017AJ....154..168M NEATM 6.54 2.250 2.250 Masiero 2020PSJ.....1....5M NEATM 6.76 1.350 1.350 Masiero 2021PSJ.....2..162M NEATM 7.39 0.352 0.352 Masiero 2011ApJ...741...68M NEATM